public void Activate(Token targetToken)
{
Lifeline target;
if (!TryGetLifeline(targetToken, out target))
{
return;
}
Row startRow = m_Matrix.LastRow;
Pin startPin = startRow[target];
if (startPin.PinType != PinType.In)
{
AddError(targetToken, "Unexpected activation. Add call [ANY]->[THIS] before activation.");
return;
}
var endPin = new OpenPin(target, startPin.Orientation, targetToken);
target.State.OpenPins.Push(endPin);
int currentLevel = target.State.GetLevel(startPin.Orientation);
Activity activity = ElementFactory.CreateActivity(currentLevel);
target.State.IncLevel(startPin.Orientation);
activity.Connect(startPin, endPin);
CurrentOperand().Add(activity);
}
private void Deactivate(Lifeline target, Token targetToken, bool errorIfUnexpectedDeactivation)
{
Row endRow = m_Matrix.LastRow;
Pin endPin = endRow[target];
if (target.State.OpenPins.Count == 0)
{
AddError(targetToken, "Unexpected deactivation. The lifeline must be activated before.");
return;
}
OpenPin lastOpenPin = target.State.OpenPins.Pop();
Activity lastOpenActivity = lastOpenPin.GetActivity();
if (endPin.PinType != PinType.In && endPin.Signal != null && endPin.Signal.SignalType == SignalType.Return)
{
ILifeline targetOfReturn = endPin.Signal.End.Lifeline;
ILifeline sourceOfActivation = lastOpenActivity.Start.Signal.Start.Lifeline;
if (!sourceOfActivation.Equals(targetOfReturn))
{
AddError(targetToken,
string.Format(
"Unexpected deactivation. Return came from '{0}' but activation was initiated by '{1}'",
targetOfReturn.Id,
sourceOfActivation.Id));
}
}
else
{
endRow = m_Matrix.CreateRow();
endPin = endRow[target];
}
lastOpenActivity.ReconnectEnd(endPin);
target.State.DecLevel(lastOpenActivity.Orientation);
}
